Braided steel core strings for universal use. This string is an advance over conventional solid strings, lying midway in the path of evolution from the solid core to the advanced spiral core type. The solid core has been replaced by a cable-type structure made up of braided steel threads. This reduces the string’s stiffness, improving its elasticity. Super flexible is incomparably responsive and its tone seems to literally radiate from the instrument, without the least harshness. Durability, tuning stability and purity of open fifths are unsurpassed. Super flexible is a dependable all-round string for the discerning musician, at home with every type of bowing and in every musical situation. Super flexible is not only appropriate for the special timbre of viola and ‘cello but seems to restore the original beauty of tone to these instruments which other strings often tend to hide.Used by Students and Professionals around the worldMade in AustriaGenuine Thomastik-Infeld Product